GeForce GTX 285 1GB vs GeForce GTX 560 Ti 448

Intro

Compare all that to the GeForce GTX 560 Ti 448, which comes with a clock speed of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit memory bus, and uses a 40 nm design. It is made up of 448 SPUs, 56 Texture Address Units, and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 285 1GB		204 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 6 Watts (3%)

Memory Bandwidth

The GeForce GTX 285 1GB, in theory, should perform a little bit faster than the GeForce GTX 560 Ti 448 overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTX 560 Ti 448		144000 MB/sec
	Difference: 14976 (10%)

Texel Rate

The GeForce GTX 285 1GB should be quite a bit (about 26%) more effective at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 10848 (26%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is the winner, and very much so. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 8544 (41%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.